{Reference Type}: Journal Article {Title}: How funny is ChatGPT? A comparison of human- and A.I.-produced jokes. {Author}: Gorenz D;Schwarz N; {Journal}: PLoS One {Volume}: 19 {Issue}: 7 {Year}: 2024 {Factor}: 3.752 {DOI}: 10.1371/journal.pone.0305364 {Abstract}: Can a large language model produce humor? Past research has focused on anecdotal examples of large language models succeeding or failing at producing humor. These examples, while interesting, do not examine ChatGPT's humor production abilities in ways comparable to humans' abilities, nor do they shed light on how funny ChatGPT is to the general public. To provide a systematic test, we asked ChatGPT 3.5 and laypeople to respond to the same humor prompts (Study 1). We also asked ChatGPT 3.5 to generate humorous satirical headlines in the style of The Onion and compared them to published headlines of the satirical magazine, written by professional comedy writers (Study 2). In both studies, human participants rated the funniness of the human and A.I.-produced responses without being aware of their source. ChatGPT 3.5-produced jokes were rated as equally funny or funnier than human-produced jokes regardless of the comedic task and the expertise of the human comedy writer.